🇬🇧 During excavation of a large cemetery in polish town Ciepłe between 2004-2014 archaeologists found 4 chamber burials of Scandinavian type dating to the 11th century AD. The contents of the graves, surrounded by 60 more plain ones, was composed of among other things weapons and equestrian (horse) equipment, indicating that the buried individuals used to be part of the social elite. Recent results from strontium isotop and genetic analysis have now revealed that the 4 buried individuals originated from Scandinavia, most likely Denmark.

According to archaeologists the find is evidence of Scandinavians holding high positions within the Piast elite, founded by Boleslaw I the Brave at the end of the 10th century AD.